Product Name: L Bar 90L Prism (GMP104) Model NO.: 90L Horizontal Line: 1 Vertical Lines: 1 Accuracy: 5" Effective Diameter: ?25.4mm Distance Range: 1500m Trademark: NO Transport Package: Carton Origin: China HS Code: 9015900090 Product Description 90 L type bracket prism, LEICA MODEL NO.: GMP104; 90L RIGHT ANGLE PRISM, MAYBE MOUNTED ON THE TUNNELS, ROADS AND BRIDGS, DAMS, BUILDINGS AND ConSTRUCTURES OR SOME OTHER FIXUP PLACE OR OBJECTS FOR SURVEYING, DISTORTION, DISPLACEMENT. IT SUIT FOR DEFFIRENT KINDS OF TOTAL STATIONS.*Effective diameter: Φ 25.4mm;*Offset: -25.3mm*Accuracy: 5"*Distance range: 1500m